MSM7654

E2F0023-29-83 ¡ Semiconductor MSM7654 ¡ Semiconductor NTSC/PAL Digital Video Encoder This version: Aug. 1999 MSM7654 Previous version: Dec. 1998 GENERAL DESCRIPTION The MSM7654, which is a digital video encoder supporting NTSC/PAL formats, converts digital image data to an analog video signal. The encoder can receive the digital image or RGB digital image signals conforming to ITU-R BT.601 as an input signal. The encoder can output simultaneously the composite video and S-video signals, and it can also www.DataSheet4U.com output the RGB analog signal by switching. The encoder can control luminance (Y) signal output levels of the composite video and S-video signals. FEATURES Video signal system: NTSC/PAL Scanning system: interlaced/noninterlaced (NTSC : 262 lines/PAL : 312 lines) Input digital level: conforms to ITU-R BT.601 (CCIR601) Input-output timing: conforms to ITU-R BT.656 or ITU-R BT.624-4 Input signal sampling ratio : Y:Cb:Cr = 4:2:2 or 4:1:1/R:G:B = 8:8:8 Supported input interface · ITU-R BT.656 · YCbCr format (8-bit input) · ITU-R BT.601 (8-bit (Y) + 8-bit (CbCr) input) · RGB (24-bit input) Pixel frequency (Sampling frequency) : · 12.272727 MHz (24.545454 MHz) : NTSC Square Pixel · 13.5 MHz (27 MHz) : NTSC/PAL ITU-R BT.601 · 14.318182 MHz (28.636364 MHz) : NTSC 4Fsc · 14.75 MHz (29.5 MHz) : PAL Square Pixel Output format · Selectable composite & S-video or RGB · 37.5 W driving capability Master or slave operation (slave operation only in ITU-R ...